Personally, I do not underestimate any testosterone market, particularly its penetration. Meaning, I don't underestimate the again male population and their desire to maintain. Every time I bring up the internet, I see on the right side of my screen some add showing a pretty girl with the heading, got low testosterone? And I hear plenty of "on-air" commercials on Cable these days.
Silly analogy, but forgive me for a second, what's more testosterone manly than injecting yourself in the friendly confines of your bathroom - safely and conveniently and subcutaneously or with a potion that you rub on?
Regarding the current injectables - I'm not that schooled in that subject. But aren't the current injectables intramuscular? QS-T would be Subcutaneous, so QS-T would be another route switch.
jab9